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Crossref Stats Page: Updated on Jun 16, 2019

MetaData Deposit
Total Records in Database105,968,145
Total Prefixes13,957
Number of Journals68,307
Number of Books1,345,884
Number of Conference Proceedings65,958
Number of Journal DOIs77,689,064
Number of Book DOIs15,466,315
Number of Conference DOIs5,853,664
Number of Components3,765,784
Number of Standards Titles388,863
Number of Standards DOIs305,208
Number of Databases25,611
Number of Database DOIs1,806,164
Number of Articles with References Deposited43,196,218
Number of Cited-By Links916,665,056
Number of DOIs with at least one cited-by link (UNDER CONSTRUCTION)0
Number of Journal Title Level DOIs 30,622
Number of Book Title Level DOIs 1,366,369
Number of ConfProc Title Level DOIs 19,975
Number of Dissertation Title Level DOIs 271,649
Number of Report Title Level DOIs 615,647
Number of Standards Title Level DOIs 304,643
Number of Database Title Level DOIs 22,530
Number of Unique DOIs with FundRef data 2,947,660

Monthly Deposit Data

MonthTotal Records
Added
Total Current
Deposits
Total BackFile
Deposits
Total Records
Updated
(2016)6,125,8073,971,1362,154,67126,670,973
(2017)7,384,8185,109,0752,275,74331,278,043
(2018)8,265,9186,240,5712,025,34733,609,916
May786,709604,126182,5833,619,532
Jun989,215595,673393,5423,242,222
Jul822,896638,712184,1843,597,060
Aug874,231640,770233,4613,333,069
Sep809,045686,085122,9602,553,305
Oct849,490737,221112,2693,279,579
Nov827,655705,722121,9333,434,929
Dec780,544671,698108,8462,809,222
Jan837,106643,227193,8793,709,404
Feb739,634600,221139,4132,930,021
Mar883,267709,834173,4333,394,481
Apr911,489699,395212,0943,526,819
May1,022,569765,045257,5244,071,354
Jun429,405346,79382,6122,311,118


Monthly Query Data

MonthTotal MetaData
Queries
Total Matches%% by group
( Lib Pub Aflt )
Total DOI
Queries
Total Matches %
(2016)2,132,786,834741,439,41035%59%46%46%1,082,427,3471,001,605,89193%
(2017)2,104,222,315726,991,60435%51%40%40%1,522,141,0931,397,871,16892%
(2018)2194087319754,970,92334%51%43%43%1,823,393,3791,738,885,21895%
May190,472,76563,906,60834%46%46%74%156,417,656149,214,16795%
Jun199,885,89272,625,61436%44%44%61%130,753,888124,940,78196%
Jul198,568,36266,671,38234%46%44%65%135,985,549131,058,63896%
Aug183,486,67964,678,39135%49%45%76%149,760,753144,149,65896%
Sep175,579,74255,239,39331%52%38%73%126,702,532120,759,40895%
Oct186,639,13165,918,58035%56%42%73%156,798,578149,988,86196%
Nov182,717,30663,494,72735%55%44%74%195,014,038182,442,19394%
Dec127,351,47356,427,04944%55%48%72%177,168,246170,607,39296%
Jan126,964,51763,996,54150%58%42%60%127,096,055119,483,24194%
Feb141,564,96577,731,76055%59%50%68%131,022,077123,932,71995%
Mar128,308,24168,458,71453%59%53%67%155,800,023147,005,05794%
Apr149,186,03668,873,98446%56%58%68%149,987,175141,707,40594%
May172,624,83868,086,94639%54%61%66%150,178,136141,697,07594%
Jun65,369,66826,256,56140%55%51%66%78,373,28974,081,99895%


Monthly ORCID Auto-Update Data

MonthAuthors Granting
Permission
Works Added to
Authors Records
May21,79170,072
Jun19,68865,726
Jul20,91379,830
Aug21,02477,959
Sep21,22071,816
Oct25,01386,024
Nov24,94585,735
Dec22,73779,642
Jan28,24594,440
Feb25,96990,182
Mar26,58795,016
Apr22,49992,117
May38,092117,372
Jun13,69948,558

ORCID Totals

StatisticTotal
Total orcid/article pairs4,363,461
Total unique orcids1,694,372
Total works pushed2,066,210
Authors granting709,406
Authors denying484,532
Authors not responding511,989